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$thisphp5.3.x 类中的匿名函数不支持,我该如何解决这个问题,以便将$this信息/数据传递给匿名函数?我怎样才能写一个回退到 php5.3.x?

class anonymous {

    protected $methods = array();

    public function __construct(array $options)
    {
        $this->methods = $options;
    }

    public function __call($name, $arguments)
    {
        $callable = null;
        if (array_key_exists($name, $this->methods))
            $callable = $this->methods[$name];
        elseif(isset($this->$name))
            $callable = $this->$name;

        if (!is_callable($callable))
            throw new BadMethodCallException("Method {$name} does not exists");

        return call_user_func_array($callable, $arguments);
    }
}

class myclass {

    private $options = array();

    public function __construct($options = array()){
        $this->options = $options;
    }

    public function hello($data = null, $options = array()){

        $methods = new anonymous(array(
            "init" => function($options) { 

                echo "init";

                if(!$options) $options = $this->options;

                return $options; 
            }, 

            "run" => function($options) { 
                echo "run";
                return $options; 
            } 
        ));

        $default = array(
            "method" => "init",
            "options" => array()
        );

        if($data === null) {
            $method = "init";
        } else if (is_string($data)) { 
            $method = $data;
        } else if(is_array($data)) {
            $method = "init";
            $options = $data;
        }

        // Return the requested method.
        return $methods->$method($options);

    }

}

因此对于,

$myclass = new myclass(array("hello world!"));
var_dump($myclass->hello());

结果,

init 致命错误:在第 41 行的 /home/content/95/10799595/html/bin/test/anonymous_4.php 的对象上下文中使用 $this --> if(!$options) $options = $this->选项;

我应该在 php5.4 上的本地主机中得到这个,

初始化数组 (size=1) 0 => 字符串 'hello world!' (长度=12)

有什么解决办法和建议吗?

编辑:

public function hello($data = null, $options = array()){

        $self = $this;

        $methods = new anonymous(array(
            "init" => function($options) use($self){ 

                echo "init";

                if(!$options) $options = $self->options;

                return $options; 
            }, 

            "run" => function($options) { 
                echo "run";
                return $options; 
            } 
        ));

        $default = array(
            "method" => "init",
            "options" => array()
        );

        if($data === null) {
            $method = "init";
        } else if (is_string($data)) { 
            $method = $data;
        } else if(is_array($data)) {
            $method = "init";
            $options = $data;
        }

        // Return the requested method.
        return $methods->$method($options);

    }

仍然得到一个错误。

致命错误:无法访问第 43 行 /home/content/95/10799595/html/bin/test/anonymous_4.php 中的私有属性 myclass::$options

4

1 回答 1

2

只是

$foobar = $this;

$anonymous = function() use($foobar) {

};

作品。

这很愚蠢,但那是 php ...... :)

于 2013-08-04T16:21:30.200 回答